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Surface temperature and shrub cover drive ground beetle (Coleoptera: Carabidae) assemblages in short-rotation coppices
Agricultural and Forest Entomology ( IF 1.6 ) Pub Date : 2021-04-05 , DOI: 10.1111/afe.12441 Peter Kriegel 1 , Michael‐Andreas Fritze 2 , Simon Thorn 1
中文翻译：
表面温度和灌木覆盖驱使地甲虫（鞘翅目：Carabidae）在短轮换灌木丛中聚集
更新日期：2021-04-05
Agricultural and Forest Entomology ( IF 1.6 ) Pub Date : 2021-04-05 , DOI: 10.1111/afe.12441 Peter Kriegel 1 , Michael‐Andreas Fritze 2 , Simon Thorn 1
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- Increasing demand for biomass has led to an on-going intensification of fuel wood plantations with possible negative effects on open land biodiversity. Hence, ecologists increasingly call for measures that reduce those negative effects on associated biodiversity. However, our knowledge about the efficiency of such measures remains scarce.
- We investigated the effects of gap implementation in short rotation coppices (SRCs) on carabid diversity and assemblage composition over 3 years, with pitfall traps in gaps, edges and interiors. In parallel, we quantified soil surface temperature, shrub- and herb cover.
- Edges had the highest number of species and abundances per trap, whereas rarefied species richness was significantly lower in short rotation coppice interiors than in other habitat types. Carabid community composition differed significantly between habitat types. The main environmental drivers were temperature for number of species and abundance and shrub cover for rarefied species richness.
- We found significantly higher rarefied species richness in gaps compared with interiors. Hence, we argue that gap implementation benefits overall diversity in short rotation coppices. Furthermore, the differences in species community composition between habitat types through increased species turnover support carabid diversity in short rotation coppices. These positive effects were largely attributed to microclimate conditions. However, to maintain positive effects, continuous management of herb layer might be necessary.
中文翻译：
表面温度和灌木覆盖驱使地甲虫（鞘翅目：Carabidae）在短轮换灌木丛中聚集
- 对生物质的需求不断增加，导致薪材种植园的持续集约化，可能对开阔土地生物多样性产生负面影响。因此，生态学家越来越多地呼吁采取措施减少对相关生物多样性的负面影响。然而，我们对这些措施的效率的了解仍然很少。
- 我们研究了 3 年间在短轮换丛林 (SRC) 中实施间隙对 Carabid 多样性和组合组成的影响，并在间隙、边缘和内部存在陷阱。同时，我们量化了土壤表面温度、灌木和草本覆盖。
- 每个陷阱的边缘具有最高的物种数量和丰度，而短轮换灌木内部的稀有物种丰富度显着低于其他栖息地类型。Carabid 群落组成在栖息地类型之间存在显着差异。主要的环境驱动因素是物种数量和数量的温度以及稀有物种丰富度的灌木覆盖。
- 与内部相比，我们发现间隙中的稀有物种丰富度明显更高。因此，我们认为间隙实施有利于短轮换灌木的整体多样性。此外，栖息地类型之间物种群落组成的差异通过物种周转增加支持短轮换丛林中的carabid多样性。这些积极影响主要归因于小气候条件。然而，为了保持积极的效果，可能需要持续管理药草层。
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